Dynamic spectral-comparison tasks reveal integration processes static tests miss

Evidence

In this context it has also been demonstrated that subjects can compare spectra, however, the results were not interpretable in a statistical sense, due to several reasons. First, the time scale of presentation is much longer in the present paradigm than typically in profile analysis, where the stimulus is presented for multiple seconds rather than subsecond presentations. Second, in the present context the stimulus is composed of randomly timed occurrences of tones in certain frequency bins (which defines the spectral profile over time), rather than static profiles from constantly presented tones or filtered noise. Third, the comparison between different profiles is performed dynamically, rather than in a two stimulus comparison task. As described above this allowed us to study the dynamic integration of stochastic information, and enables the collection of reaction times as another indicator of the underlying processes. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3344

Categorization

• XREF: Contrasts with classic profile analysis paradigm (Green and Berg 1991), which the reader may know from psychoacoustics literature.